Trolley-wheel.



in. 817,292. VPATENTED APR. 10, 1906. M. L. AMANN.

TROLLEY WHEEL.

APPLICATION FILED MARJO. 1904.

6] [Tor/mew llIAItTlN LUTHER AMANN, OF WARREL FFTGE.

, PENNSYLVANIA, ASSIGNOR or 'l'ROLLEY WHlEEL.

Itl'o. aiaeea' Specification ot Letters Patent.

Patented April 10, 1906.

Application filed March 10, 1904. Serial No 197,553.

To (LZZ whom, it may concern:

Be it known that I, MARHN LUTHER AMANN, a citizen of the United States, resid ing at Warren, in the county of Vt'arren and State of Pennsylvania, have invented a new and useful Trolley-WVheel, of which the following is 'a specification.

My present invention. relates to a novel wheel adaptedfor various uses, but designed with special reference to its use as a trolleywheel for taking the current from a feed-wire for the motor of an electrically-propelled vehicle. V

The object of the invention is to produce a self-lubricating antifrictional wheel of simple, durable, and ellicient construction and capable of being mounted in any trolley-harp of standard make or design.

A further object of the invention is to construct the wheel in separate concentric sections, the inner section being mounted upon an axle and including an oil-chamber arranged to lubricate the bearing between the members as well as the bearing between the axle and the inner member, so that in the event of derangement or binding of the outer member, which normally rotates freely, the two members may rotate in unison upon the axle.

Other objects subordinate to those enumerated will appear during the course of the succeeding description of the illustrated structure.

In the accompanying drawings, Figure 1 is a side elevation of a 'wheel constructed in accordance with my invention. Fig. 2 is a vertical section on the line 2 2 of Fig. 3. Fig.

3 is a diametrical section on the ine3 3 of Fig. 2. Fig. 1 is a sectional View of a portion of a Wheel constructed like that shown in Fig. 3, but provided'with a double row of balls.

Like numerals of reference are employed to designate corresponding parts throughout the several views.

The wheel comprises relatively movable nner and outer concentric sections 1 and 2, the former having an axial opening 3 through i which the axle 4 is passed. In that embodiment of my invention shown in the first three figures of the drawings the axial opening 3 in the inner wheel member is defined by a bearing-sleeve 5, externally threaded at one end, as indicated at 6, and connected by an integral annularweb or wall 7 with what may be termed an "outer bearm '-sleeve 8, encircled by the outer section 2 o the wheel. The inner and outer sleeves and 8 of the inner wheel-section are spaced apart to form an intermediate oil-chamber 9, designed to supply oil to the bearing between the inner and outer wheel-sections and also to the bearing between the inner wheel-section and the axle, the sleeve 5 being provided with oilopenings 10.

The outer bearing-sleeve 8 of the inner wheel-section 1 comprises a pair of separable members 11 and 12, the former being preferably, though not necessarily, inte ral with the sleeve 5 and the wall 7 and the latter having an internally-threaded annular flange 13 screwed upon the externally-threaded extremity of the sleeve 5. The members 11 and 12 are disposed with their proximate ends separated by a slight interval and are beveled in opposite directions to form oppositely-inclined walls of a ball-race, the outer walls of which are defined by a ball-groove 14 in the interior face of the outer wheel-section \Vithin the ball-race thus formed are disposed a series of antilrictional balls 15, preferably 01 steel, and contacting with steel wear-rin s 16, with which the beveled end faces of t he members 11 and 12 are provided. Obviously rollers or other a-ntifriction bearin elements may be substituted for the balls.

ateral movement of the outer Wheel-section 2 is prevented by the balls 15; but for the sake of further assurance the members 11 and 12 are provided at their outer ends with annular flanges 17, opposed to the opposite sides ot the section 2.

It will now appear that not only may the outer bearing-sleeve 8 of the inner wh'eel-section be regarded as com osed of separable members, but it may also c said that the 1nner wheelsecti0n comprises relatively adjustable sections or members, one including the sleeve 5, the wall 7 and the sleeve-sec tion 11, and the other including the sleevesection 12 and its internal annular flange 13, screwed upon the sleeve 5. Thus by effecting the relative rotation of the sect1ons or members of the inner wheel-section the mner walls of the ball-race may be adjusted to compensate for wear, the balls being thus urged outwardly into engaging relation with the walls of the ball-groove 14 m the wheelseotion 2.

Under ordinary conditions the outer wheelinner member, said inner member comprising section 2 Wlll rotate freely upon the inner secinner and outer bearing-sleeves separated by tion 1, the interposed ball-bearing being constantly lubricated by the oil escaping from fthe chamber 9. .;If, however, derangement or wear of the-parts should result in thebinding of the outer section 2 upon the inner section 1 the latter wi'lljrotate freely upon the axle 4, the bearing between said axle and the sleeve 5 being lubrica to throughthe openings'; 10. I

IuFig. 4 is shown'a'wheel constructed in a manner similar to that shown in Fig. 3, except that instead of having a single series of antifriction balls bearing upon the proxi mate ends of the members 11 and 12 two series of such balls-are provided, and the ballraces are formed by a pair of ball-grooves 14 and. 14 in the outer wheel-section 2 and a ball-groove 14 in each of ,the members 11 and,12. v It is thought that from the foregoing the construction of my wheel and the many advantages accruing from its use will be clearly apparent." 4

' What I claim is t I v 1. YA wheel, comprising inner and outer independently-rotatable members, the inner member including an inner bearing sleeve and a sectional outer bearing-sleeve con-J nected together to rotate in umsonf 2. A wheel, comprising inner and outer independently-rotatable members, the inner member including an inner bearing sleeve and a sectional outer bearing-sleeve, one sec tion of the outer bearing-sleeve being rigid with the inner sleeve and the other section of.

the outer sleeve being adjustable 011 the in'-. ner sleeve. i

3. A wheel, comprisin inner and outer independently-rotary mem ers, theinner member including an inner bearing-sleeve, and. a sectional outer bearing-sleeve the sectionsof which are adjustable toward and from each other. I I 5 4. In combination, an axle, and a wheel including an inner member rotatable on the axle'and an outer member rotatable on the by oil passing there an annularcavity and connected togeth o rotate 1n unison.

- 5. In combination, anaxle, and a; wheelincluding an inner member rotatable ion being composed ofrelat'ively adjustable sec-- tions.

6. In combination, 'an axle, and a wheel including aninner member rotatable on the:

axle and an outer member rotatable on the inner member, the inner wheel being niade up of inner and outer bearing-sleeves, the

outer sleeve comprising relatively adjustable. x

sections cohnecte'd to the inner sleeve for rotation therewith, said sections being formed with flanges to confine the outer wheel m'emher in proper position.

7. A trolley-wheel, comprisin-g independ-i ently rotary inner and outer wheel members,

the inner member comprising an inner bearingsleeve and asectional outer bearing sleeve, one section of the outer bearing+sleeve 8. A trolley-wheel, comprising independently-rotary inner and outer wheel members, v

the inner wheel m'emberbeing made up of separated lnner and outer bearmg-sleeves, the outer bearing-sleeve COmPIISIDg separate relatively adju stable sections, both of which are connected tothe innerbearing-sleeve' and each of which is provided with a flange 'designed for the retention of the-outer wheel" .member, and antifriction bearing elements interposed between the wheel members and retained between the opposed ends of the sections of the outer bear1ng-sleeve. In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presencewof two witnesses MARTIN LUTHER AMANN; Witnesses: v

C. E. BORDWELL, i A. J. 'HAZELTINE. 

